Atacamite and Feldspar Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.745-3.776
  
2.56-2.75
  
Fracture
Conchoidal, Conchoidal, Brittle
  
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
  
Cleavage
Perfect on {010}, fair on {101}
  
two or three
  
Mohs Hardness
3-3.5
  
6-6.5
  
Chemical Composition
Cu2Cl(OH)3
  
Not Available
  
Atacamite and Feldspar Chemical Formula
While comparing Atacamite and Feldspar physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Atacamite and Feldspar chemical formula.
- Chemical formula of Atacamite- Cu2Cl(OH)3
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Atacamite and Feldspar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Atacamite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.